1987 Ford Sierra vs. 2003 Opel Vectra
To start off, 2003 Opel Vectra is newer by 16 year(s). Which means there will be less support and parts availability for 1987 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1987 Ford Sierra would be higher. At 2,958 cc (6 cylinders), 2003 Opel Vectra is equipped with a bigger engine. In terms of performance, 2003 Opel Vectra (174 HP @ 4000 RPM) has 61 more horse power than 1987 Ford Sierra. (113 HP @ 5300 RPM) In normal driving conditions, 2003 Opel Vectra should accelerate faster than 1987 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Vectra weights approximately 674 kg more than 1987 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2003 Opel Vectra (370 Nm @ 1900 RPM) has 190 more torque (in Nm) than 1987 Ford Sierra. (180 Nm @ 3000 RPM). This means 2003 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1987 Ford Sierra.
Compare all specifications:
| 1987 Ford Sierra | 2003 Opel Vectra | |
| Make | Ford | Opel |
| Model | Sierra | Vectra |
| Year Released | 1987 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2294 cc | 2958 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 113 HP | 174 HP |
| Engine RPM | 5300 RPM | 4000 RPM |
| Torque | 180 Nm | 370 Nm |
| Torque RPM | 3000 RPM | 1900 RPM |
| Engine Bore Size | 96 mm | 87.5 mm |
| Engine Stroke Size | 79.5 mm | 82 mm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1090 kg | 1764 kg |
| Vehicle Length | 4400 mm | 4830 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Vehicle Height | 1370 mm | 1510 mm |
| Wheelbase Size | 2620 mm | 2840 mm |
| Fuel Tank Capacity | 45 L | 60 L |
